Features:

1. This item is new.

2. This set replaces 50 individual drills. Double edge design for faster, smoother cutting. 3-sided shank does not slip into the drill chuck cobalt coated for a softer and cooler cutting

3. Coated to reduce friction and run cooler.

4. The large bits have a 3-sided shank and small bits have a hex shank to prevent slipping in the drill chuck.

5. Automatically deburrs holes when drilling. Durable high-strength steel.

7. Includes padded aluminium sleeve.

Package size: 15 x 10.5 x 4.2 cm (L x W x H).

Sizes:

#1: 3/16" to 1/2" 6 steps (3/16, 1/4, 5/16, 3/8, 7/16, 1/2).

#2: 1/8" to 1/2" 13 steps (1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2).

#3: 1/4" to 3/4" 9 steps (1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4")

#4: 1/4" to 1-3/8" 10 steps (1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8")

#5: 3/16" to 7/8" 12 steps (1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8")

Box contents:

1 x step drill, 1/4-1-3/8

1 x 3/16-7/8 Step Drill Bit

1 x 1/4-3/4 Step Drill Bit

1 x 1/8-1/2 Step Drill Bit

1 x 3/16-1/2 Step Drill Bit

1 x Aluminum Box